The Wall Street Journal’s Robert Frank has been keeping his on the accumulating wealth of BRIC billionaires. A new report from consulting firm, Wealth-X, shows the accelerating process:

Brazil, Russia, India and China now have a combined 25,600 people with $30 million or more in net worth (which includes shares in publicly traded and closely held companies, residential and investment real estate, art, planes, cash and other investible assets). That is about half the number of ultra-high-net individuals in the U.S., according to Wealth-X. The BRIC ultrarich have a combined net worth of $4.125 trillion, compared to $6.4 trillion for the U.S.